The tropical circulation induced by the nouthern-hemisphere winter tropical pacific SST warm anomaly and its quasi-biweekly oscillation anomaly are simulatcd in terms of the p-σ mixed coordinate five layered primitive equation global band model with the surface temperature governed by the heat balance euqation. The results are summarized as follows: The SST warm anomaly can produce several rainfall centers in the low latitude convergence zone that are about 25-30 longitudes apart. This phenomenon may well be caused by the westward dissipation of the disturbance energy in the anomalous warmth while the phase velocity of the disturbance is eastward. The greater the SST warm anomaly is, the more intense are the resulting precipitation, the cross equatorial upper and low level streams, the westerlies in the northern hemisphere subtropics, the anti-Walker circulation on the west side of the disturbance and the anomalous upper-level easterlies, and the usual Walker circulation on the east side and the anomalous upper-level westerlies. When the SST warm anomaly is observed in the eastern Pacific, the resulting anomalies are all found farther east and are generally weak in strength. With the decay of the quasi biweekly oscillation,the difference between the anomalies of circulation and rainfall produced by different SST warm anomalies are also small.